Results 141 to 150 of about 170,686 (340)

Making vertebrate fossil radiocarbon dates more useful for global scientific research

open access: yesJournal of Quaternary Science, EarlyView.
ABSTRACT Radiocarbon dating of bones is essential for reconstructing timelines of species' occurrences, domestication, extinction, migrations, and interactions with Quaternary environments. Many studies compile these chronologies at continental to global scales by aggregating radiocarbon dates from various sources, often balancing data quantity and ...
Salvador Herrando‐Pérez   +1 more
wiley   +1 more source

Human behavior recognition using a context-free grammar

open access: yesJ. Electronic Imaging, 2014
A. Rosani, N. Conci, F. D. Natale
semanticscholar   +1 more source

Under which conditions can tidal reeds contribute to shore protection? The critical interplay between external stress and internal stress resistance in brackish marshes

open access: yesLimnology and Oceanography, EarlyView.
Abstract Tidal reeds provide essential coastal protection by shielding the shore from the effects of waves and currents, reducing soil erosion or even enabling sediment accretion. However, these environments face increasing threats from human activities and climate change.
Jana Carus   +5 more
wiley   +1 more source

Glacial meltwater drives high CH4 supersaturation in Maxwell Bay, King George Island (Southern Ocean)

open access: yesLimnology and Oceanography Letters, EarlyView.
Abstract Coastal waters exhibit the highest and most dynamic dissolved CH4 concentrations in marine environments, but significant knowledge gaps on the distribution and emissions, particularly in the Southern Ocean, still exist. We quantified dissolved CH4 concentrations and sea–air fluxes in the coastal waters of Maxwell Bay, King George Island ...
Lina A. Holthusen   +9 more
wiley   +1 more source

Continuous determination of dissolved inorganic carbon fluxes from pumping suspension feeders

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Suspension‐feeding organisms play a pivotal role in the cycling of carbon in the oceans. They filter large amounts of water, filter out organic matter, remineralize it, and release respiratory CO2 back into the water column. Measuring emissions of respiratory CO2 in situ from suspension feeders poses the challenge of detecting small changes in
Neomie Diga Darmon   +8 more
wiley   +1 more source

The covering problem for linear context-free grammars

open access: bronze, 1976
Harry B. Hunt   +2 more
openalex   +1 more source

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